Herald Petrel vs Balearic Shearwater
Pterodroma heraldica verglichen mit Puffinus mauretanicus
Side-by-Side Comparison
| Merkmal | Herald Petrel | Balearic Shearwater |
|---|---|---|
| Wissenschaftlicher Name | Pterodroma heraldica | Puffinus mauretanicus |
| Ordnung | Procellariiformes | Procellariiformes |
| Familie | Procellariidae | Procellariidae |
| Erhaltungsstatus | Least Concern | Critically Endangered |
| Länge | — | — |
| Flügelspannweite | 56,2 cm (22.1 in) | 48,4 cm (19.1 in) |
| Gewicht | 278,5 g (9.82 oz) | 514,8 g (18.16 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Least Concern
Herald Petrel
Critically Endangered
Balearic Shearwater
About These Birds
Herald Petrel
37 cm. Polymorphic petrel; pale morph has white underparts with dark M-mark and partial collar; dark morph sooty brown. Breeds widely across central and south Pacific islands. Ranges in tropical Pacific; feeds on squid and fish. Closely related to Kermadec Petrel.
Balearic Shearwater
30–38 cm. Brown above; variably dirty-white to brown below; often shows brown smudging on flanks. Breeds only Balearic Islands, Spain. Critically Endangered with fewer than 3,000 pairs; faces extinction. Migrates to NE Atlantic; threatened by predators, fishing bycatch, and tourist development.